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GenericNativeIndexPopulator.java
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GenericNativeIndexPopulator.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.index.schema;
import java.io.File;
import java.io.IOException;
import java.io.UncheckedIOException;
import org.neo4j.gis.spatial.index.curves.SpaceFillingCurveConfiguration;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.kernel.api.index.IndexDirectoryStructure;
import org.neo4j.kernel.api.index.IndexProvider;
import org.neo4j.kernel.impl.index.schema.config.IndexSpecificSpaceFillingCurveSettingsCache;
import org.neo4j.kernel.impl.index.schema.config.SpaceFillingCurveSettingsWriter;
import org.neo4j.storageengine.api.schema.IndexReader;
import org.neo4j.storageengine.api.schema.StoreIndexDescriptor;
import static org.neo4j.kernel.impl.index.schema.NativeIndexes.deleteIndex;
class GenericNativeIndexPopulator extends NativeIndexPopulator<GenericKey,NativeIndexValue>
{
private final IndexSpecificSpaceFillingCurveSettingsCache spatialSettings;
private final IndexDirectoryStructure directoryStructure;
private final SpaceFillingCurveConfiguration configuration;
private final boolean archiveFailedIndex;
GenericNativeIndexPopulator( PageCache pageCache, FileSystemAbstraction fs, File storeFile, IndexLayout<GenericKey,NativeIndexValue> layout,
IndexProvider.Monitor monitor, StoreIndexDescriptor descriptor, IndexSpecificSpaceFillingCurveSettingsCache spatialSettings,
IndexDirectoryStructure directoryStructure, SpaceFillingCurveConfiguration configuration, boolean archiveFailedIndex )
{
super( pageCache, fs, storeFile, layout, monitor, descriptor, new SpaceFillingCurveSettingsWriter( spatialSettings ) );
this.spatialSettings = spatialSettings;
this.directoryStructure = directoryStructure;
this.configuration = configuration;
this.archiveFailedIndex = archiveFailedIndex;
}
@Override
public void create()
{
try
{
// Archive and delete the index, if it exists. The reason why this isn't done in the generic implementation is that for all other cases a
// native index populator lives under a fusion umbrella and the archive function sits on the top-level fusion folder, not every single sub-folder.
deleteIndex( fileSystem, directoryStructure, descriptor.getId(), archiveFailedIndex );
// Now move on to do the actual creation.
super.create();
}
catch ( IOException e )
{
throw new UncheckedIOException( e );
}
}
@Override
IndexReader newReader()
{
return new GenericNativeIndexReader( tree, layout, descriptor, spatialSettings, configuration );
}
}